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Plo1 phosphorylates Dam1 to promote chromosome bi-orientation in fission yeast
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Buttrick, G. J., Lancaster, T. C., Meadows, J. C. and Millar, Jonathan B. A. (2012) Plo1 phosphorylates Dam1 to promote chromosome bi-orientation in fission yeast. Journal of Cell Science, Vol.125 (No.7). pp. 1645-1651. doi:10.1242/jcs.096826 ISSN 0021-9533.
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Official URL: http://dx.doi.org/10.1242/jcs.096826
Abstract
The fungal specific heterodecameric outer kinetochore DASH complex facilitates the interaction of kinetochores with spindle microtubules. In budding yeast, where kinetochores bind a single microtubule, the DASH complex is essential and phosphorylation of Dam1 by the Aurora kinase homologue, Ipl1, causes detachment of kinetochores from spindle microtubules. We demonstrate that in the distantly related fission yeast, where the DASH complex is not essential for viability and kinetochores bind multiple microtubules, Dam1 is instead phosphorylated on serine 143 by the Polo kinase homologue, Plo1, during prometaphase and metaphase. This phosphorylation site is conserved in most fungal Dam1 proteins, including budding yeast Dam1. We show Dam1 phosphorylation by Plo1 is dispensable for DASH assembly and chromosome retrieval but instead aids tension-dependent chromosome bi-orientation.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Biomedical Sciences > Cell & Developmental Biology Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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| Journal or Publication Title: | Journal of Cell Science | ||||
| Publisher: | The Company of Biologists Ltd. | ||||
| ISSN: | 0021-9533 | ||||
| Official Date: | 2012 | ||||
| Dates: |
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| Volume: | Vol.125 | ||||
| Number: | No.7 | ||||
| Page Range: | pp. 1645-1651 | ||||
| DOI: | 10.1242/jcs.096826 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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